Home / 2,948.30-4,069-1,689.50

Finding the Fourth Proportional to 2,948.30, 4,069 and 1,689.50

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Solution

The fourth proportional to 2,948.30, 4,069 and 1,689.50 is: 2,331.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.30 : 4,069 = 1,689.50 : x
  2. Step 2: Convert to fraction form
    2,948.30/4,069 = 1,689.50/x
  3. Step 3: Cross multiply
    2,948.30x = 4,069 × 1,689.50
  4. Step 4: Simplify right side
    2,948.30x = 6,874,575.50
  5. Step 5: Solve for x
    x = 6,874,575.50/2,948.30
  6. Step 6: Final answer
    x = 2,331.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.